In December 2016, Reddy gave the student her cell phone number and then added him on Snapchat, according to the police records. The student said in February 2017 he received messages from Reddy saying, "I want your hands on me."

About three weeks after that, Reddy picked up the student from a friend's house in Solebury, Pennsylvania, drove him to a nearby park and had sex with him, according to the police report.

Police received the first report of the incident on November 20. In a statement to parents, the school said they had reported the case to prosecutors after being made aware of it.

The school said it is cooperating with law enforcement, and that the head of the school plans to meet with students Monday.

Reddy had since left the school and moved to Maryland. A Baltimore television station reported that Reddy had been teaching at the St. Paul School for Girls near Baltimore, and that she had been fired.

She was arrested by the Baltimore County Fugitive Task Force, police said.

Reddy is charged with institutional sexual assault, unlawful contact with a minor, criminal use of a communication facility and corruption of a minor.